Taylor Swift and Calvin Harris surfaced in Nashville … could it be? Taylor and the famous DJ were coming out of Whole Foods Wednesday night – wearing matching shirts no less – when 2 people snapped the pics. This isn’t the first time they’ve been together recently. Taylor went to Calvin’s concert in Vegas earlier this month. There were reports he chartered a jet to fly her to the gig. They got all flirty at the Brit Awards after-party in London back in February. Shopping for food together …